Improvement in carriage-springs



H. H. OLDS.

Carriage-Spring.

No. 49,545. I Patented Aug. 22, 1865.

UNITED STATES PATENT OFFICE.

HENRY H. OLDS, OF NEW HAVEN, CONNECTICUT.

IMPROVEMENT IN CARRIAGE-SPRINGS.

Specification forming part of Letters Patent No. 49,545, dated August 22, 1865.

To all whom it may concern:

Be it known that I, H. H. OLDs, of New Haven, in the county of New Haven and State of Connecticut, have invented a new and Improved Spring for Carriages, 850.; and I do herebydeclare thatthefollowingis a full, clear, and exact description thereof, which will enable others skilled in the artto make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 represents a sectional side elevation of this invention. Fig. 2 is a plan or top view of the same. Fig. 3 is an end View ofthe same.

Similar letters of reference indicate like parts.

Thisinventiou consists in theuse ot'two crossarms provided at their ends with hinged caps which inclose blocks of india-rubber or other elastic material, and which are connected by longitudinal rails in such a manner that by placing a weight upon said rails, or by subjecting the same to a pressure of any description the elastic blocks are compressed between the caps and the edges of the rails, and a spring is obtained which is strong, durable, and has considerable play, with a proportionate] y small quantity of elastic material.

A A represent two cross-arms, made ofiron or other suitable material, and connected together in their center by a pivot, a, as clearly shown in the drawings. The ends of these cross-arms are hinged to triangular caps 13, which swing on pivots b, that have their bear ings in rails C. The caps may be made of malleable iron or of any other suitable material, and they are provided with lugs which straddle the rails; or they may be connected to said rails in any other desirable manner. The

vanized indiarubber or other suitable elastic material, as shown in Fig. 1, where one of the caps is represented in section so as to show the elastic block.

When the two rails are exposed to some pressure, which has a tendency to bring them closer and closer together, the elastic blocks are com pressed between the caps and the edges of the rails, and by their action a certain elasticity or spring force is imparted to the entire system. A spring for carriages or other vehicles can thus be produced which requires only a small amount of elastic material, which can be made entirelyot'iron or other cheap met a1, and which allows of considerable motion. If one of the elastic blocks shall wear out, it can easily be replaced by another, and the whole device is not liable to get out of order.

My spring is applicable to vehicles of any description, particularly to light wagons and carriages; but it can also be made strong and heavy enough for railroad-cars, if it should be desired.

I claim as new and desire to secure by Letters Patent- A spring composed ofcross-a-rms A A, hinged caps B, and elastic blocks D, connected together substantially in the manner and for the purposes set forth.

HENRY H. OLDS.

Vitnesses HENRY D. WHITE, SAMUEL CAMPBELL. 

